Transfer Guard settings should be in Spark profile
Transfer Guard plugin saves its settings in %USERPROFILE%\sparkExt.properties file instead of putting it into %APPDATA%\Spark like all other settings go. It should also be saved in usual place and its name should be transferguard.properties.
File is not created in Spark profile and is called transferguard.properties. Old settings are not carried over. One would have to copy contents of spartExt.properties file, if they need to import it to the new file.